Asplenium dielerectum, a member of the spleenwort family (Aspleniaceae), is a fern that grows in tufts of three to nine lance-shaped fronds, each 20 to 70 cm (8 to 28 in) long. The fronds emerge from a 1 to 2.5 cm (0.4 to 1 in) long rhizome covered with brown to dark gray scales. The frond stalks...